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A ball of mass m collides on ground at a...

A ball of mass m collides on ground at an angle `alpha`, with the vertical. If the collision lasts for time t, the average force exerted by the ground on the ball is (e=coefficient of restitution between the ball and the ground)

Text Solution

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Impulse = change in linear momentum.

`therefore Ft = m(eu cos alpha + u cos alpha)` or F `= (m u cos alpha(1+e))/(t)`
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